Improvement in habvesters



@Him mes ige-1m @faire GEORGE RIEMER, OF FAYETTE, NEW YORK.

Letters .Patent No. 70,744, dated November 12, 1867.

IMPROVEMENT IN HARVESTERS.

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To ALLWHOM 1T MAYv eoNeERN:

Be it known that I, GEORGE RIEMI-m, of Fayette, in the county of Seneca, and State of New York, have invented a certain new and useful Improvement in Harvesters; and I do hereby .declare that the following is afnll and exact description thereof, reference being had to the accompanying drawings, making part of this specification. v

Figure 1 is a side elevation of my improved machine.

Figure 2 is a rear sectional elevation.

Like letters of reference indicate corresponding parts in both figures.

My;improvement..belongsto that class where a. zigzag grooved wheel is employed, with the. end of the pitman or a connection resting in the groove, for giving an accelerated motion to the sickle.

The invention consists in combining. with such a wheel, of peculiar form, and resting on an independent shaft, a friction-roller for holding the sickle-har in place under the accelerated motion, and lessening the friction, as hereinafter set forth. f

As represented in the drawings, A is the main frame, and B the driving-wheel of a harvester. To the driving-wheel is secured a spur-gear, O, which gives motion to a pinion, D, on a shaft, E. To the end of this shaft lis secured a wheeh'G, invsuch a manner as to be removable, being shown as simply keyed on. This wheel is provided with a projecting rim or ilange, a, on the inner side of which is cut the zigzag groove b, having fitting therein a small roller or bearing, e, of the sickle-bar H. Thus, as the wheel is revolved, the sickle-barreceves a rapidreciprocating motion.' Near the grooved wheel a friction-roller, I, is secured to 'the finger-beam, under which roller, and'betweenit and the fingerLbeam, runs the sickle-bar, being thus retained closely in pla-ce.

The driving-whcel itself ordinarily forms the zigzag wheel, in which case only a slow motion of the sickle is attained. In my case, by gearing' to the shaft E, I gain a very rapid motion. In this rapid motion the sicklebar is liable to derangement and lnisplaecment, and also to great friction, which difhcultics I obviate in a great degree by the employment ofthe friction-roller, as before described. This roller is essential underthese circumstances, otherwise the motion will be so greatas really to make thecu'ttng apparatusfinoperative, or to break the parts. This feature is one of much importance.

The making of the groovedwhecl removable from its shaft enables me to apply one of larger orvsmaller size, at pleaslire, to vary the motion. The projecting flange a of the wheel houses the groove and the bearing of the pitman which fits therein, so as to protect from the weather arid from grass that might otherwise clog the parts. l

Iam aware that zigzag grooves, for giving an acceleratedmotion to the sickle, have before been employed; such, broadly, I do not claim.

What I claim as my invention, and desire to secure by Letters Patent, isa The combination, with lthe sickle-bar II and groovcd wheel G,provided with the rim a, and made removable from its shaft, of the friction-roller I, arranged and operating in the manner and for the purpose herein set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

' GEORGE RIEMER. Witnesses:

Z. L. DAVIS, J. A. DAVIS. 

